Diamond treatments in the 14th Century were known to be an art form that significantly increased the value of the diamond. It was first in the early 14th Century when the true polishing and cutting to create new facet arrangements and shapes where thought to evolve (Balfour, 2000). As cutting technology advanced, it was natural that the diamond manufacturers learned how to improve the brilliance and color of a diamond. As a result is probable that a variety of coating techniques soon emerged.